Airman 1st Class Brett Miska, a 28th Maintenance Squadron Fabrication Flight non-destructive inspection apprentice, provides a demonstration of the Fluorescent Penetrant Line within the NDI lab at Ellsworth Air Force Base, S.D., July 13, 2022. The mission of the NDI lab is to identify and confirm damages in the B-1B Lancer airframe and support equipment. (U.S. Air Force photo by Staff. Sgt. Hannah Malone)